Internal combustion engine for technical models



FIG. 1 is a perspective view of an internal combustion engine showing my new design;

FIG. 2--is a front elevational view thereof;

FIG. 3--is a rear elevational view thereof;

FIG. 4--is a right side elevational view thereof;

FIG. 5--is a left side elevational view thereof;

FIG. 6--is a top plan view thereof;

FIG. 7--is a bottom plan view thereof. 

The ornamental design for an internal combustion engine for technical models, as shown and described. 